一、调用链码说明(不使用Fabric-CA模块)

1.1 测试代码结构说明

├── pom.xml├── doc# 运行结果图片├── cc# 使用Go实现的链码├── src│   ├── main│   │   ├── java│   │   │   └── ijarvis│   │   │       └── intelliq│   │   │           ├── FabricApp.java# 初始化Fabric Client对象以及连接组织信息│   │   │           ├── LedgerRecord.java# 链码中数据结构Bean│   │   │           └── SampleUser.java# 抽象超级账本中用户信息(实际就是MSP下user文件夹中生成的用户身份文件)│   │   └── resources│   │       └── log4j.xml  │   └──test│       ├── java│       │   └── ijarvis│       │       └── intelliq│       │           └── AppTest.java# Junit测试代码文件│       └── resources│           ├── crypto-config# 测试环境下所有证书以及MSP文件集合│           │   ├── ordererOrganizations│           │   │   └── example.com│           │   └── peerOrganizations│           │       ├── org1.example.com│           │       └── org2.example.com│           └── log4j.xml

1.2、 核心代码说明

packageijarvis.intelliq.Fabric;// 省略相关的包导入publicclassSampleUserimplementsUser {privatefinalStringcertFolder;privatefinalStringuserName;publicSampleUser(StringcertFolder,StringuserName) {this.certFolder =certFolder;this.userName =userName;    }//省略相关Set和Get方法/**    *    * 重要实现方法，不使用CA需要自己实现如何加载私钥以及证书信息    */@OverridepublicEnrollmentgetEnrollment() {returnnewEnrollment() {@OverridepublicPrivateKeygetKey() {try {returnloadPrivateKey(Paths.get(certFolder,"/keystore/ea2db84973c9c54436c47d7e10b9b63420f654ecd7c541fab14646e976294393_sk"));                }catch (Exceptione) {returnnull;                }            }@OverridepublicStringgetCert() {try {returnnewString(Files.readAllBytes(Paths.get(certFolder,"/signcerts/Admin@org1.example.com-cert.pem")));                }catch (Exceptione) {return"";                }            }        };    }//测试代码所以固定写死相关的MSPID@OverridepublicStringgetMspId() {return"Org1MSP";    }/***     * 实现加载证书服务     */publicstaticPrivateKeyloadPrivateKey(PathfileName)throwsIOException,GeneralSecurityException {PrivateKeykey =null;InputStreamis =null;try {is =newFileInputStream(fileName.toString());BufferedReaderbr =newBufferedReader(newInputStreamReader(is));StringBuilderbuilder =newStringBuilder();booleaninKey =false;for (Stringline =br.readLine();line !=null;line =br.readLine()) {if (!inKey) {if (line.startsWith("-----BEGIN ") &&line.endsWith(" PRIVATE KEY-----")) {inKey =true;                    }continue;                }else {if (line.startsWith("-----END ") &&line.endsWith(" PRIVATE KEY-----")) {inKey =false;break;                    }builder.append(line);                }            }//byte[]encoded =DatatypeConverter.parseBase64Binary(builder.toString());PKCS8EncodedKeySpeckeySpec =newPKCS8EncodedKeySpec(encoded);KeyFactorykf =KeyFactory.getInstance("ECDSA");key =kf.generatePrivate(keySpec);        }finally {is.close();        }returnkey;    }}

1.3、其他说明

二、使用CA Server调用链码

user1.setEnrollment(hfcaClient.enroll(user1.getName(),"admin"));

三、链码操作

# 安装链码Shell> peer chaincode install -n epointchaincodecommon   -p epointchaincodecommon -v 0.1# 实例化链码操作Shell> peer chaincode instantiate -o orderer.example.com:7050  -C$CHANNEL_NAME  -c'{"Args":["init"]}' -P"OR  ('Org1MSP.member','Org2MSP.member')" -n epointchaincodecommon -v 0.1# 调用插入KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C$CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c'{"Args":["addkv","liuwenru","刘文儒"]}'# 调用更新KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C$CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c'{"Args":["updatekv","liuwenru","刘美丽"]}'# 调用查询KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C$CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c'{"Args":["query","liuwenru"]}'# 根绝给定的Key查询该账本中所有的历史操作Shell> peer chaincode invoke -o orderer.example.com:7050   -C$CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c'{"Args":["queryhistory","liuwenru"]}'# 调用删除链码操作，注意，此删除操作只会删除账本中当前的值，对于账本中的历史值是不会删除的Shell> peer chaincode invoke -o orderer.example.com:7050   -C$CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c'{"Args":["delkv","liuwenru"]}'

四、调用结果展示

五、学习笔记目录列表